Blorq is a straightforward RSS and Atom feed aggregator that compiles all the newest content you want to track. Blorq uses a relatively snappy interface that enables you to quickly browse and add feeds. There's a few neat Ajax effects thrown in, so reading stories doesn't require actually visiting the site, just clicking the title. There's also some simple keyboard shortcuts that let you navigate through stories and rate them for later viewing.
There's also a fairly extensive library of RSS and Atom feeds you can browse through and add to your favorites. Most of this is standard fare for Web-based feed aggregators, but Blorq has the feel of a cohesive site with an interface that blends top and side navigation menus. Give it a spin.